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Morphology resulting from coupling of phase separation and glass transition in polymer blends
Author(s) -
Danchinov S. K.,
Shibanov Yu. D.,
Godovsky Yu. K.
Publication year - 1996
Publication title -
macromolecular symposia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.257
H-Index - 76
eISSN - 1521-3900
pISSN - 1022-1360
DOI - 10.1002/masy.19961120111
Subject(s) - materials science , polybutadiene , polymer blend , glass transition , polystyrene , cloud point , percolation (cognitive psychology) , supersaturation , phase (matter) , quenching (fluorescence) , polymer , morphology (biology) , phase transition , crystallization , polymer chemistry , thermodynamics , chemical engineering , chemical physics , copolymer , composite material , chemistry , optics , organic chemistry , pulmonary surfactant , physics , neuroscience , biology , fluorescence , engineering , genetics
At temperatures near glass transition temperature, off‐critical binary polystyrene/polybutadiene (PS/PB) mixtures were found to experience phase separation through the mechanism of slow hydrodynamic coarsening. A bicontinuous phase structure was produced on quenching the PS/PB‐blends under cloud point curve. Different coarsening regimes of this percolation structure depending on degrees of supersaturation were found. At late stages of coarsening, secondary phase separation was observed.